CN103556669A - Swing energy recovery control device of hydraulic excavator - Google Patents

Swing energy recovery control device of hydraulic excavator Download PDF

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Publication number
CN103556669A
CN103556669A CN201310482136.6A CN201310482136A CN103556669A CN 103556669 A CN103556669 A CN 103556669A CN 201310482136 A CN201310482136 A CN 201310482136A CN 103556669 A CN103556669 A CN 103556669A
Authority
CN
China
Prior art keywords
valve
oil
control device
energy recovery
recovery control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201310482136.6A
Other languages
Chinese (zh)
Inventor
王振兴
李宗�
秦家升
费树辉
史继江
高见厂
孙本强
李志鹏
郑扬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xuzhou XCMG Excavator Machinery Co Ltd
Original Assignee
Xuzhou XCMG Excavator Machinery Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xuzhou XCMG Excavator Machinery Co Ltd filed Critical Xuzhou XCMG Excavator Machinery Co Ltd
Priority to CN201310482136.6A priority Critical patent/CN103556669A/en
Publication of CN103556669A publication Critical patent/CN103556669A/en
Priority to BR112016006723A priority patent/BR112016006723A2/en
Priority to PCT/CN2014/084230 priority patent/WO2015055042A1/en
Priority to US15/024,901 priority patent/US10287750B2/en
Priority to ZA2016/02780A priority patent/ZA201602780B/en
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2217—Hydraulic or pneumatic drives with energy recovery arrangements, e.g. using accumulators, flywheels
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/10—Supports for movable superstructures mounted on travelling or walking gears or on other superstructures
    • E02F9/12—Slewing or traversing gears
    • E02F9/121—Turntables, i.e. structure rotatable about 360°
    • E02F9/123—Drives or control devices specially adapted therefor
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2267—Valves or distributors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/02—Installations or systems with accumulators
    • F15B1/027—Installations or systems with accumulators having accumulator charging devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/14—Energy-recuperation means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7058—Rotary output members

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

The invention discloses a swing energy recovery control device of a hydraulic excavator. The swing energy recovery and control device of the hydraulic excavator comprises an oil way selection valve, a direction selection valve, a sequence valve, a check valve and an overflow valve. Two oil inlets of the oil-way selection valve are connected with the A opening and the B opening of a swing motor, the oil outlet of the oil way selection valve is connected with the inlet of the direction selection valve, the outlet of the direction selection valve is connected with the inlet of the sequence valve, the oil drainage opening of the sequence valve is connected with an oil tank, the outlet of the sequence valve and the inlet of the check valve are communicated with the overflow valve, the outlet of the check valve is connected with an energy storage and utilization device, and the outlet of the overflow valve is connected with the oil tank. The swing energy recovery control device of the hydraulic excavator can recover swing starting and braking overflow energy without affecting the original motion performance of the hydraulic excavator, selects high-pressure oil ways of the oil inlets and the oil outlets of the swing motor through a shuttle valve, and is quick in response speed and simple in structure; can achieve the recovery of starting and braking overflow energy through one device, so that fewer elements and components are needed and the pipeline design is simplified.

Description

A kind of hydraulic crawler excavator rotation energy recovery control device
Technical field
The present invention relates to a kind of hydraulic gyration mechanism rotation energy recovery control device, particularly a kind of hydraulic crawler excavator rotation energy recovery control device, it is applicable to have the hydraulic crawler excavator of Control in Hydraulic Rotation System.
Background technology
Hydraulic crawler excavator is applied widely, and energy consumption is large, and work has strong periodically feature, and the power-saving technology of research hydraulic crawler excavator has very large economic worth and feasibility.Traditional hydraulic crawler excavator is when revolution startup and retarding braking, revolution starts and braking moment is determined by the oil pressure relief that turns round overflow valve setting, in revolution start-up course, the flow providing due to hydraulic pump is greater than the flow that rotary motor needs, thereby can produce revolution startup spill losses; In rotary braking process, by the reverse back pressure of turning round overflow valve, produce braking moment and reach braking effect, thereby can produce braking spill losses; Overflow fluid produces a large amount of heat energy, causes excavator hydraulic system heating, reduces hydraulic system performance and life-span.Because excavator work has strong periodicity feature, revolution action is a kind of action very frequently, so its energy loss of bringing is very serious, the energy of loss is carried out to recycling and have very considerable economic benefit.
Publication number is the Chinese patent of CN101736771A, discloses a kind of rotary decelerating and braking energy recovery system of hydraulic excavator, and this energy-recuperation system only reclaims rotary braking overflow energy, does not reclaim revolution and starts overflow energy; Publication number is the Chinese patent of CN102733442A, a kind of hydraulic crawler excavator rotation energy recycling system is disclosed, this system adopts three position three-way change valve respectively forward revolution and the energy of reversed turning to be reclaimed, but the response time of reversal valve will inevitably affect effect and turnability that energy reclaims; Also have some devices when energy reclaims, to utilize energy storage device as hydraulic motor, to set up back pressure as accumulator or energy utilization device, the back pressure that this mode is set up is also unstable, will inevitably affect the performance of digger revolving system.
Summary of the invention
The object of this invention is to provide a kind of hydraulic crawler excavator rotation energy recovery control device, it can start and the overflow energy the automatic recovery of braking procedure revolution, and little to excavator original system performance impact when recovering energy.
In order to address the above problem, the technical solution used in the present invention is: a kind of hydraulic crawler excavator rotation energy recovery control device, comprise oil circuit selector valve, directional selecting valve, sequence valve, one way valve and overflow valve, two oil-ins of described oil circuit selector valve are connected with B mouth with the A mouth of rotary motor respectively, the oil-out of oil circuit selector valve is connected with the entrance of directional selecting valve, the outlet of described directional selecting valve is connected with the entrance of sequence valve, the drain tap of sequence valve is connected with fuel tank, the outlet of described sequence valve and the entrance of one way valve are connected with overflow valve, the outlet of described one way valve connects stored energy use device, the outlet connected tank of described overflow valve.
As a further improvement on the present invention, described oil circuit selector valve is shuttle valve.
As a further improvement on the present invention, described oil circuit selector valve also can be comprised of two one way valves.
As a further improvement on the present invention, described directional selecting valve is solenoid operated directional valve or pilot operated directional control valve or electric proportional reversing valve or hand-operated direction valve.
As a further improvement on the present invention, described one way valve also can be selected the logic valve with reverse cutoff function.
As a further improvement on the present invention, described overflow valve is arranged on stored energy use device.
The invention has the beneficial effects as follows: revolution is started to overflow energy to this device and rotary braking overflow energy all can reclaim, and this rotation energy recovery control device can not affect under the prerequisite of the former performance of hydraulic crawler excavator, reclaim that revolution starts and braking overflow energy; Adopt oil circuit selector valve to select the high-pressure oil passage of rotary motor oil inlet and outlet, response is fast, simple in structure; The foundation of system back pressure is set up by sequence valve operating pressure, and sequence valve operating pressure is set according to former rotary system oil pressure relief, makes rotary system property retention constant; Add directional selecting valve, can more easily energy-recuperation system be enabled or be closed, be beneficial to and realize automation, the present invention just can realize the recovery that digger revolving is started and braked overflow energy simultaneously by a device, changed the unicity that existing digger revolving overflow energy reclaims, the components and parts that this device adopts are few, simplify circuit design, for overflow energy, reclaimed and play a good role, greatly reduced oil mass waste, save cost, and be beneficial to operation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Wherein: 1, oil circuit selector valve, 2, directional selecting valve, 3, sequence valve, 4, one way valve, 5, overflow valve.
The specific embodiment
Below in conjunction with specific embodiment and accompanying drawing, the invention will be further described.
For the preferred shuttle valve of oil circuit selector valve 1 this case, the preferred solenoid operated directional valve of directional selecting valve 2 is done following statement to this case:
As shown in Figure 1, a kind of hydraulic crawler excavator rotation energy recovery control device, comprises oil circuit selector valve 1, directional selecting valve 2, sequence valve 3, one way valve 4 and overflow valve 5, two oil-ins of described shuttle valve are connected with B mouth with the A mouth of rotary motor respectively, the oil-out of shuttle valve is connected with the entrance of solenoid operated directional valve, the outlet of described solenoid operated directional valve is connected with the entrance of sequence valve 3, the drain tap of sequence valve 3 is connected with fuel tank, the entrance of the outlet of described sequence valve 3 and one way valve 4 is connected with overflow valve 5, the outlet of described one way valve 4 connects stored energy use device, the outlet connected tank of described overflow valve 5, described overflow valve 5 is arranged on stored energy or use device, by on the overflow valve 5 person's use device that is arranged on stored energy, its compact conformation, simply, do not need extra linkage.
In above-described embodiment, described oil circuit selector valve 1 also can be comprised of two one way valves, and its effect is that the high-pressure oil passage of rotary motor oil inlet and outlet is selected;
Described directional selecting valve 2 also can replace to directional selecting valve, electric proportional reversing valve or hand-operated direction valve, and its effect is to enable or close rotation energy recovery control device, is convenient to realize automatic control;
The opening pressure of described sequence valve 3 and operating characteristic and former rotary system overflow opening pressure and oil pressure relief characteristic are approximate, can guarantee to add energy recovery control device after systematic function do not reduce;
Described one way valve 4 can be selected the logic valve with reverse cutoff function, and its effect is to prevent that the hydraulic oil backflow of reclaiming from damaging or harmful effect system;
The effect of described overflow valve 5 is maximum pressures that fluid is reclaimed in restriction, protection system.
Operating principle of the present invention is:
This rotation energy recovery control device can not affect under the prerequisite of the former performance of hydraulic crawler excavator, reclaims revolution startup and braking overflow energy.In the rotation energy recovery control device course of work, directional selecting valve 2 is opened, when revolution starts, because rotary motor flow is less than POF, therefore rotary motor inlet pressure can raise, now rotary motor entrance hydraulic oil is communicated with sequence valve 3 entrances by oil circuit selector valve 1, directional selecting valve 2, when hydraulic oil pressure reaches sequence valve 3 set pressure, sequence valve 3 is opened, the unnecessary high-pressure oil flow of system enters energy storage device or energy utilization device through sequence valve 3 and one way valve 4, and rotary motor staring torque is guaranteed by sequence valve 3 pressure; When rotary braking, rotary motor is operated in pump operating mode, now rotary motor outlet pressure raises, inlet pressure reduces, rotary motor outlet hydraulic oil is communicated with sequence valve 3 entrances by oil circuit selector valve 1, directional selecting valve 2, when hydraulic oil pressure reaches sequence valve 3 set pressure, sequence valve 3 is opened, the unnecessary high-pressure oil flow of system enters energy storage device or energy utilization device through sequence valve 3 and one way valve 4, rotary motor braking moment is guaranteed by sequence valve 3 pressure, installs maximum pressure recovery and is set up by overflow valve 5.

Claims (8)

1. a hydraulic crawler excavator rotation energy recovery control device, it is characterized in that: comprise oil circuit selector valve (1), directional selecting valve (2), sequence valve (3), one way valve (4) and overflow valve (5), two oil-ins of described oil circuit selector valve (1) are connected with B mouth with the A mouth of rotary motor respectively, the oil-out of oil circuit selector valve (1) is connected with the entrance of directional selecting valve (2), the outlet of described directional selecting valve (2) is connected with the entrance of sequence valve (3), the drain tap of sequence valve (3) is connected with fuel tank, the entrance of the outlet of described sequence valve (3) and one way valve (4) is connected with overflow valve (5), the outlet of described one way valve (4) connects stored energy use device, the outlet connected tank of described overflow valve (5).
2. hydraulic crawler excavator rotation energy recovery control device according to claim 1, is characterized in that: described oil circuit selector valve (1) is shuttle valve.
3. hydraulic crawler excavator rotation energy recovery control device according to claim 1, is characterized in that: described oil circuit selector valve (1) is comprised of two one way valves.
4. according to the hydraulic crawler excavator rotation energy recovery control device described in claims 1 to 3 any one, it is characterized in that: described directional selecting valve (2) is solenoid operated directional valve.
5. according to the hydraulic crawler excavator rotation energy recovery control device described in claims 1 to 3 any one, it is characterized in that: described directional selecting valve (2) is pilot operated directional control valve.
6. according to the hydraulic crawler excavator rotation energy recovery control device described in claims 1 to 3 any one, it is characterized in that: described directional selecting valve (2) is electric proportional reversing valve.
7. according to the hydraulic crawler excavator rotation energy recovery control device described in claims 1 to 3 any one, it is characterized in that: described directional selecting valve (2) is hand-operated direction valve.
8. hydraulic crawler excavator rotation energy recovery control device according to claim 1, is characterized in that: described overflow valve (5) is arranged on stored energy use device.
CN201310482136.6A 2013-10-15 2013-10-15 Swing energy recovery control device of hydraulic excavator Pending CN103556669A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CN201310482136.6A CN103556669A (en) 2013-10-15 2013-10-15 Swing energy recovery control device of hydraulic excavator
BR112016006723A BR112016006723A2 (en) 2013-10-15 2014-08-13 rotary energy recycling control device for hydraulic excavator
PCT/CN2014/084230 WO2015055042A1 (en) 2013-10-15 2014-08-13 Rotatory energy recycling control device for hydraulic excavator
US15/024,901 US10287750B2 (en) 2013-10-15 2014-08-13 Rotatory energy recycling control device for hydraulic excavator
ZA2016/02780A ZA201602780B (en) 2013-10-15 2016-04-21 Rotatory energy recycling control device for hydraulic excavator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310482136.6A CN103556669A (en) 2013-10-15 2013-10-15 Swing energy recovery control device of hydraulic excavator

Publications (1)

Publication Number Publication Date
CN103556669A true CN103556669A (en) 2014-02-05

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CN201310482136.6A Pending CN103556669A (en) 2013-10-15 2013-10-15 Swing energy recovery control device of hydraulic excavator

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US (1) US10287750B2 (en)
CN (1) CN103556669A (en)
BR (1) BR112016006723A2 (en)
WO (1) WO2015055042A1 (en)
ZA (1) ZA201602780B (en)

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WO2015055042A1 (en) * 2013-10-15 2015-04-23 徐州徐工挖掘机械有限公司 Rotatory energy recycling control device for hydraulic excavator
CN105443462A (en) * 2014-08-12 2016-03-30 安钛医疗设备股份有限公司 Two-way output hybrid hydraulic power system
US9556591B2 (en) 2015-03-25 2017-01-31 Caterpillar Inc. Hydraulic system recovering swing kinetic and boom potential energy
US9809958B2 (en) 2015-03-25 2017-11-07 Caterpillar Inc. Engine assist by recovering swing kinetic energy
US9951795B2 (en) 2015-03-25 2018-04-24 Caterpillar Inc. Integration of swing energy recovery and engine anti-idling systems
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CN111719634A (en) * 2020-07-08 2020-09-29 高旭春 Excavator potential energy recovery system, recycling system and recycling method
CN113235691B (en) * 2021-05-18 2022-06-24 立澈(上海)自动化有限公司 Energy-saving control method for rotation starting of excavator
CN114352597B (en) * 2022-01-25 2024-04-23 佳木斯大学 Overload reverse impact valve and overload prevention method

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CN111503076A (en) * 2020-04-08 2020-08-07 三一重机有限公司 Oil return power generation system
CN111503076B (en) * 2020-04-08 2022-10-11 三一重机有限公司 Oil return power generation system

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WO2015055042A1 (en) 2015-04-23
US20160289925A1 (en) 2016-10-06
BR112016006723A2 (en) 2017-08-01
ZA201602780B (en) 2017-06-28

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Application publication date: 20140205